๐Ÿ’‘ Relation

= the way in which two objects are connected



  • Symmetrical: identical with its converse
  • Nonsymmetrical: not symmetrical
  • Asymmetrical: excluding its converse
  • Reflexive: fulfilled in case of identity within its field
  • Irreflexive: not reflexive
  • Transitive: always holds also for the next member but one
  • Nontransitive: not transitive
  • Intransitive: nontransitive & never holds for the next member but one
  • Connected: between two different members of the field either it or the converse always holds
  • Sequence: Irreflexie & transitive & Connected
  • Similarity relation: symmetrical & reflexive
  • Equivalence: Similarity relation & transitive